iOS standalone PWAs don't get Safari's native pull-to-refresh, so add
our own. New <PullToRefresh> component handles the gesture: dampened
drag past an 80px threshold triggers an async onRefresh; below that it
springs back. Swipe direction is locked to the first 6px of movement,
so horizontal carousel swipes (landscape Home) don't accidentally fire
PTR. The arrow icon rotates from 0° to 180° as the pull approaches the
threshold and turns primary-color when ready; during refresh a CSS
spinner replaces it.
- HomeView refreshes the device list (and sync status with it)
- LibraryView refreshes images, pending-share count, devices, and the
active shared sub-tab page when it's the one in view
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
